Someone made a tip of making a open field with torches at night time, easy to get wolves that way , your problem would be the stock on bones and ham x3

Quote:Wolves are new mobs introduced in Beta 1.4. Notch had confirmed the addition of these animals upon having breakfast with Peter Molyneux.[1] On March 18th, 2011, a video was posted showing a preview of wolves, which were being made by Jeb. Wolves spawn in forest and taiga biomes.[2] Wolves may also be considered the "pet dogs" as previously mentioned by Notch. Wild wolves are usually neutral.[3] As of now, they are not known to drop anything. At the moment you can also have as many wolves as you want until Mojang comes up with a way to limit the number you can have tamed.[4] Wolves do spawn on Multiplayer servers, and they continuously make whimpering noises even when they are at full health.

Apparently, they spawn in forests/taigas. As for the ham/bones, make a mob grinder in SMP